Officer-style case with dual hinged covers allowing access to both dial and movement. Manually wound mechanical caliber finished with precision components for consistent accuracy and long-term performance. White enamel dial with traditional numerals and subsidiary seconds display. Inner hinged back enabling movement visibility without removing outer case. Case executed in 18k yellow gold with reinforced hinge system for durability.

There’s depth in how this watch is experienced. It invites interaction, revealing layers of craftsmanship step by step.

Patek Philippe Ref. 973J-001

Lépine-Style Pocket Watch — Yellow Gold

The 973J-001 represents the open-face/Lépine side of Patek Philippe’s modern pocket-watch collection. Unlike the Savonnette references, the Lépine construction does not use a protective front cover and positions the winding crown at 12 o’clock. Patek Philippe explicitly identifies the 973J-001 as a Lépine-style pocket watch in yellow gold.

Case

* Reference: 973J-001
* Case material: 18K yellow gold
* Case style: Lépine/open-face
* Case diameter: 44.8 mm
* Case construction: Open-face
* Crown/winding stem: 12 o’clock

Dial

* Color: White
* Finish: Vertical satin finish
* Hour markers: Applied yellow-gold Breguet numerals
* Hands: Yellow-gold Breguet-style hands
* Indications: Hours, minutes and small seconds

Movement

* Calibre: 17’’’ LEP PS
* Winding: Manual
* Function: Small seconds
* Diameter: 38.65 mm
* Thickness: 3.8 mm
* Components: 157
* Jewels: 18
* Power reserve: Minimum 50 hours
* Frequency: 18,000 semi–oscillations/hour (2.5 Hz)
* Balance spring: Breguet
* Certification: Patek Philippe Seal

Patek Philippe confirms that the 17’’’ LEP PS is the Lépine version of its 17-line pocket-watch movement, while the SAV PS is the corresponding Savonnette version.